The theme for this weekend is ‘Free’ – with all kinds of festivals and lots of ribbiting riveting activities that won’t cost your family a dime (except maybe for parking and food). Here’s your family fun weekend guide for August 19-21.

Photo Credit: Boston Greenfest

Boston GreenFest

August 18-20
Hours: Times vary; see website for information
City Hall Plaza
Boston, MA
Cost: FREEwebsite

It’s never too late to go green, and Boston GreenFest will help educate novices about eco-living and share new ideas for experienced eco-dwellers. The festival will include interactive exhibits, workshops, presentations, eco-fashion, live entertainment, games, kids’ activities, food, vendors, and more.

Photo Credit: Thinkstock

Frog Appreciation Day

Come join the inaugural celebration of frogs at Frog Appreciation Day. This event – produced in partnership between Boston Common Frog Pond and the Franklin Park Zoo – is an educational event that will teach kids about the importance of preserving animal habitats and protecting frogs here and around the world. Kids can learn cool “frog facts” while enjoying face painting, story-telling, music and even Frog Races!

Photo Credit: Southeast Asian Water Festival

Lowell Southeast Asian Water Festival

In its 14th year, the Lowell Southeast Asian Water Festival draws nearly 60,000 every year to thank the “spirit of water and pay homage to the Dragon King as they do in Southeast Asian. Experience these rich traditions through blessings, food, crafts, performances, and boat races. The day kicks off with a parade along the Merrimack River and Monks Boat Blessing and ends with the announcement of the boat race winners. In between enjoy fashion shows, music and lots of authentic food.

Photo Credit: West End Children's Festival

West End Children’s Festival

International flavor is the theme this year for the West End Children’s Festival, which will celebrate its 6th year. Enjoy food, arts and crafts, games, and performances that celebrate the beauty of different cultures.

Photo Credit: Gloucester Water Festival

Gloucester Waterfront Festival

Gloucester is well known for its beautiful waterfront, and this weekend over 175 juried crafters from across the country will showcase their wares, alongside live entertainment and a variety of food options. You can literally eat your way through the day by starting with the hearty pancake breakfast. Don’t eat too much though — the traditional New England Lobster Bake is not to be missed! Your pets are also welcomed as long as they are friendly and you keep them on a leash.

Sunday Fun in the Park

Enjoy one of Boston’s best views thanks to The Esplanade Association’s Sunday Fun in the Park. At this event families can enjoy games, yoga for all ages photography lessons, and more.

Christine Koh is a music and brain scientist turned freelance writer, editor, and designer. She is the founder and editor of Boston Mamas, the designer behind Posh Peacock, and writes a personal blog at Pop Discourse.